[MrForbes]

Depends...did you design the mechanism so it's quite unlikely that you'll need to replace the motor, or have to remove it? If so, then just solder and secure. But if you need to remove the motor or change it for whatever reason, and you are good at soldering things without accidentally melting the plastic motor parts, I'd suggest adding the Andersen connectors and soldering the wires to the motor. If you have trouble soldering things like that, then terminals to plug onto the motor would work. Either way, stress relief is important